Blackboard-eraser cleaner.



PATENTED MAR. l2, 1907.

H. MEYER BLAGKBOARD ERASBR CLEANER.

APPLICATION EILEIJ PEB. 10, 1906.'

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HERMAN MEYER, OF `SALT LAKE CITY, UTAH.

BLACKBOARD-ERASER CLEANER.

Specification of Letters Patent.v

Patented March 12, 1907.

Application filed February 10, 1906. Serial 110.300,541.

T0 a/ZZ whom t may crm/cern:

Be it known that I, HERMAN' MEYER, a citizen of the United States, residing at Salt Lake City, in the county of Salt Lake and State of Utah, have invented new and useful lImprovements in Blackboard-Eraser Cleaners, of which the followingis a specification.

The object of this invention is to provide means in a cheap and` durable form for removing quickly and effectively the chalkdust from blackboard-erasers and to accomplish this end without allowing the dust to escape into the atmosphere. The dust being confined within the dust-chamber of the device will be deposited on the bottom and can be readily removed at desired intervals through an opening providedl for that purose. p The accompanying drawing illustrates the invention, its various parts being referred to by letters, similar letters denoting corresponding parts in the several views.

In the drawing, Figure 1 is a fragmentary vertical section on line x of Fig. 2 and with an eraser thereon in position to be cleaned. Fig. 2 is a fragmentary plan view of the device without the eraser and partly in section. Fig. 3 is an end elevation with the door partly opened.

The letter a designates the body of the device, having the dust-chamber a. The top bof this chamber is set slightly below the upper edges of the sides of the body a. Grooves c are formed in the projecting sides of the body just above the top b. A slide made inv two sections d and d is provided with lateral wires e, or an equivalent, whichv move in the grooves c as the slide is operated. This slide has an opening d2 intermediate of its ends to receive the eraser m.

An opening f is made through the top b 7L is an eXit for the chalk-dust and is preferably made at an end of the chamber a. The upper edge of this eXit has a cleat or guide t extending its entire length, and its lower edge has a short cleat t', which permits a free passageof the dust from the chamberfloor. y' is a door for said exit, having groove y, adapted to engage the guides fi 'i' when closed.

Z Z are hangers attached to the sides of the body, by which it is supported in the desired location.

The device is operated by placing the dusty eraser in the opening d2 ofthe slide and then moving it back and forth over the screen g. The body should be long enough to permit the eraser to be moved along until it has nearly or quite cleared the screen, and one section of the slide should be long enough to cover the screen when the eraser is removed, so as to prevent the escape lof dust from the chamber.

What I claim, and desire to secure, is-

1. A blackboard-eraser cleaner comprising a body having a dust-chamber provided with a top opening, a screen over said opening, and a slide having an opening intermediate lof its ends and adapted to be reciprocated upon said screen as described.

2. A blackboard-eraser cleaner com risingl a body having a dustchamber therein provided 'with a top opening, a screen over said opening, lateral grooves in the sides of said body which proj ect above its to a slide having lateral guides to engage sai grooves and an opening in said slide to permit an eraser tio (lice reciprocated upon said screen as speci- In testimony whereof I afiiX my signature in presenceof two subscribing witnesses.

HERMAN MEYER.

Witnesses:

FRANK A. LANGE, MARIE DULIN. 

